53 citations · 149 across the 13 of their papers we have counts for
4 papers · 1 filter
The Physics of Black Holes and Their Environments: Consequences for Gravitational Wave Science
Vitor Cardoso, Shauvik Biswas, Subhodeep Sarkar
Ten short years ago, we had the rare privilege of witnessing the onset of a renaissance in science: humanity finally succeeded in its arduous quest to directly detect gravitational…
Excitation factors for horizonless compact objects: long-lived modes, echoes, and greybody factors
Romeo Felice Rosato, Shauvik Biswas, Sumanta Chakraborty +1
We present an analytical and numerical investigation of the quasinormal excitation factors of ultracompact horizonless objects. These systems possess long lived quasinormal modes w…
Overcharging Extremal Rotating Black Holes
Shauvik Biswas, Amruta Sadhu, Sudipta Sarkar
In this work, we use the weak cosmic censorship conjecture(WCC) to constrain black hole solutions in modified gravity theories. While Wald showed that extremal Kerr-Newman black ho…
Greybody factors, reflectionless scattering modes, and echoes of ultracompact horizonless objects
Romeo Felice Rosato, Shauvik Biswas, Sumanta Chakraborty +1
Motivated by a recently discovered connection between the greybody factors of black holes and the ringdown signal, we investigate the greybody factors of ultracompact horizonless o…